Tshiab RO Membrane Tsis Ua Haujlwm?

Vim li cas RO Membrane tshiab tsis ua haujlwm?Cia peb tham txog cov laj thawj thiab kev daws teeb meem hauv qab no:

1. Qhov kub ntawm dej inlet tsawg dhau:
Tus qauv ua haujlwm kub ntawm qhov rov qab osmosis daim nyias nyias yog 25 ℃, thiab cov dej ntau lawm yuav txo qis los ntawm 3% txhua zaus qhov kub poob los ntawm ib degree.Yog tias qhov ntsuas kub qis dua 0 ° C, cov dej nyoos khov thiab ib txwm tsis tuaj yeem tsim dej ib txwm.

2. Lub inlet dej siab yog tsawg dhau:
Lub hauv paus ntsiab lus ua haujlwm ntawm thim rov qab osmosis membrane yog lim los ntawm lub siab.Yog tias lub twj tso kua mis siv tau ntev dhau lawm, qhov nkag siab poob qis, thiab cov dej nyoos tsis tuaj yeem ua tau raws li qhov yuav tsum tau ua, ua rau tsis muaj dej tawm ntawm qhov rov qab osmosis system.Feem ntau, kev ua haujlwm siab ntawm qhov rov qab osmosis membrane yuav tsum ncav cuag 4.14MPA.

3. Ua kom muaj pH
Ntau yam RO membrane modules muaj qhov tso cai pH ntau yam, thiab pH ntawm cov dej muaj zog yuav luag tsis muaj kev cuam tshuam rau tater ntau lawm.Tab sis txawm nyob rau hauv qhov kev tso cai, nws muaj kev cuam tshuam ntau dua ntawm cov ntsev tsis lees txais tus nqi.Ntawm qhov tod tes, tus nqi pH kuj muaj qee yam cuam tshuam rau cov khoom siv dej.Qhov no yog vim qhov rov qab osmosis daim nyias nyias nws tus kheej feem ntau muaj qee pawg ua haujlwm, thiab tus nqi pH tuaj yeem cuam tshuam rau daim nyias nyias.Qhov hluav taws xob ntawm qhov chaw nyob rau hauv lem cuam tshuam rau kev tsiv teb tsaws ntawm ions.Tus nqi pH muaj qhov cuam tshuam ncaj qha rau daim ntawv ntawm impurities hauv lub zog.Piv txwv li, rau cov organic dissociable, tus nqi tsis kam txo qis nrog qhov txo qis ntawm pH.Ntawm qhov tod tes, vim tias CO2 yaj hauv dej cuam tshuam zoo heev los ntawm tus nqi pH, thaum pH tus nqi qis, nws muaj nyob rau hauv daim ntawv ntawm cov pa roj carbon monoxide thiab yooj yim nkag mus rau hauv daim nyias nyias rov qab osmosis.Yog li ntawd, tus nqi tsis kam ntsev yog qis dua thaum pH tus nqi qis.Raws li pH nce, cov pa roj carbon monoxide hloov pauv Rau HCO-3 thiab CO2-3 ions, cov ntsev tshem tawm tau maj mam nce, thiab cov ntsev tsis kam mus txog qhov siab tshaj ntawm pH 7.5 thiab 8.5.

4. Nthuav ntsev concentration
Osmotic siab yog qhov ua haujlwm ntawm qhov concentration ntawm ntsev los yog cov organic teeb meem hauv dej.Qhov siab dua cov ntsiab lus ntsev, lub siab osmotic nce.Thaum lub siab inlet tseem zoo li qub, lub net siab yuav txo qis thiab cov dej ntau lawm yuav txo.Cov ntsev permeability yog proportional rau ntsev concentration sib txawv ntawm lub hauv ntej thiab nram qab daim nyias nyias.Qhov siab dua cov ntsiab lus ntsev ntawm lub zog, qhov ntau dua qhov sib txawv ntawm qhov sib txawv, thiab cov ntsev permeability nce, uas ua rau txo qis ntawm cov ntsev tsis kam.Rau tib lub cev, cov dej ntsev cov ntsiab lus sib txawv, kev khiav hauj lwm siab thiab cov khoom siv dej conductivity kuj txawv.Rau txhua qhov kev nce ntxiv ntawm cov dej ntsev cov ntsiab lus los ntawm 100 ppm, lub inlet dej siab yuav tsum tau nce li ntawm 0.007 MPa.Nyob rau tib lub sijhawm, vim qhov nce hauv cov concentration, cov khoom lag luam dej conductivity kuj nce raws li.

5. Pretreatment blockage:
Rov qab osmosis daim nyias nyias muaj qhov yuav tsum tau muaj rau cov dej kom tsawg, thiab cov khoom siv ua ntej tsim nyog, xws li quartz xuab zeb lim, lim kev ruaj ntseg, thiab lwm yam, feem ntau yog ntxiv ua ntej cov txheej txheem membrane.Yog tias nws siv sijhawm ntev, cov cuab yeej ua ntej yuav raug thaiv vim muaj impurities ntau dhau.Tom qab qhov thaiv, yuav muaj qee qhov poob hauv cov dej ntau lawm.Thaum lub pretreatment impurities raug thaiv tag nrho, cov dej nyoos tsis tuaj yeem nkag mus rau qhov rov qab osmosis membrane los ntawm pretreatment, ces rov qab osmosis membrane yuav tshwm li-hu ua tsis muaj dej.

6. Lub check valve yog thaiv:
Thaum siv, daim tshev valve kuj tseem raug thaiv los ntawm impurities.Koj tuaj yeem nqa daim tshev valve tawm los xyuas seb cov dej tsim tawm ntawm qhov system tau nce ntau npaum li cas.Feem ntau, lub caij nyoog ntawm daim tshev valve thaiv yog me me.

7. Rov qab osmosis membrane yog thaiv los ntawm impurities:
Ntxiv nrog rau kev kho ua ntej yuav raug thaiv, rov qab osmosis daim nyias nyias kuj tseem raug thaiv.Cov dej nyoos muaj ntau cov impurities.Feem ntau cov cuab yeej ua ntej tuaj yeem lim tau feem ntau ntawm cov impurities kom cov dej muaj zog ua tau raws li cov qauv kev cai ntawm thim rov qab osmosis.Txawm li cas los xij, qee qhov kev kho mob ua ntej yog tsim los tsis tsim nyog, ua rau cov khoom tsis huv xws li cov khoom organic, cov tshuaj dawb chlorine, thiab cov khib nyiab tshem tawm.Nyob rau hauv lub hauv paus ntsiab lus ntawm daim nyias nyias, uas ua rau txhaws ntawm daim nyias nyias.Thaum impurities kiag li thaiv cov membrane pore loj, yuav tsis muaj dej ntau lawm.

8. Lub kaw lus tom qab lim tau thaiv:
Nyob rau hauv cov txheej txheem ntawm kev siv, kev tiv thaiv tsim nyog feem ntau yog ntxiv tom qab rov qab osmosis membrane los tiv thaiv cov khoom siv dej los ntawm kev cuam tshuam los ntawm lwm yam, xws li activated carbon filtration, precision filtration, thiab lwm yam. Cov khoom siv no yuav raug thaiv los ntawm cov khoom siv lim thiab kuj tseem cuam tshuam qhov rov qab osmosis ntawm cov dej tsim tawm ntawm qhov system.